Excavating-machine.



No. 769,105. PATENTED AUG. 3o, 190A.

A. MQGARTHY.

EXCAVATING MACHINE.

APPLICATION FILED PEB. 11. 1904.

N0 MODEL. 4 SHEBTS-SHEET'I.

PATENTED AUG. 30, 1904.

` 'A.M0CARTHY.

EXGAVATING MACHINE.

APPLICATION FILED FEB. l1, 1904.4

4 SHEETS-SHBET Z.

N0 MODEL.

atto/anu@ PATBNTBD AUG. 5o, 1904.

A. MOGARTHY.

f BXCAVATING MACHINE.

APPLICATION ILED FEB. 11 1904.

4 SHEETS-SHEET 3.

N0 MODEL.

' M; @WLM I lrromw PATBNTED AUG; so, 1904.

No. 769,105. Y l

l A.'M00ARTHY. l y BXCAVATING MACHINE.

APPLICATION; FILD FEB.11, 1904.

4 SHEETS-SHEET 4.

N0 MIDDEL.

UNITED STATES Patented August 30, 1904. i

PATENT OFFICE.

ALBERT MCOARTHY, OF NEW ORLEANS, LOUISIANA, ASSIGrNOR OF NINE-SIXTEENTHS TO HUBERT M. ANSLEY, W. H. FITZPATRIOK, AND MARINA RUELLO, OFNEW ORLEANS, LOUISIANA.

ExcAvATlNe-MACHlNE.

SPECIFICATION forming part of Letters Patent No. I769,105, dated August30, 1`904. Application iiled February 11, 1904. Serial No. 193,153. (Nomodel.)

T @ZZ whom, Il?? mln/,y concer-71,:

Beit known that- I, ALBERT MoOAR'rHY, a citizen of the United States,residing at New Orleans, in the parish of Orleans and State of 5Louisiana,have invented certain new and useful Improvements inllxcavating-Machines;v

and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to improvements in excavating-machines, and isespecially applicable for use as a ditching-machine for dig-1- gingtrenches for laying pipes, whereby the trench is automatically dug andthe earth conveyed to a distant point in the trench to therear of themachine for filling in the trench after the pipe hasbeen laid. Theinvention is primarily designed to comprise a plurality oftransversely-disposed `picks arrangedin a series of vertical rows',forming an endless chain of digging implements, together with aplurality of transversely-disposed scoops or buckets similarlyarrangedto form an endless conveyer and located to the rearof the picks, thesaid ,picks and scoops being carried by a suitable movable support andadjustable vertically thereof for regulating' the depth of the trench,suitable means being provided for gradually feeding said movable supportalong a track or otherwise. .v Another object of my invention is to pro-3 5 vide means whereby the said picks and scoops may be readily raisedand lowered and held rigidly supported in their adjusted position forregulating the depth of the trench.

Other objects and advantages will be appa- 40 rent, and the novelfeatures of the invention Will appear from the following description,and more particularly specified in the claims.

erence'is had to the accompanyingv drawings, illustrating the same, inwhich like characters designatek like parts in the'several views, and

in whichf Figure l represents a side elevation of my improvedditching-machine; Fig. 2, a plan view of the same; Fig. 3, a frontelevation of a portion ofthe endless chain of picks; Fig. 4c, asectional view of same on the line 4 4 of Fig. 3; Fig. 5, a sideelevation of one of the pulleysV over which the connecting-links for thepicks and scoops reeve; Fig. 6, a sectional` view therethrough on theline 6 6 of Fig. 5; Fig. 7, a front elevation of the endless conveyermeans, showing one of the scoops in front elevation; Fig. 8, a sectiononthe line 8 8 of Fig. 7 Fig. 9, a detached plan view of 60 one of thescoops and the connecting-links; Fig. l0, a sectional view on the line10 l0 of Fig. 9; Fig. l1, a perspective detail view of a detached scooplooking toward the rear face thereof, and Fig. 12 a detail sectionalplan on 65 7line 12112 of Fig. l.

A represents asuitable movable platform or base support.

Bis an'adjustable frame above said basesupport, to which is suitablysecured the de- .70 pending side timbers C and D, forminga channeledguideway for thel series of picks and scoops, respectively.

E represents rear upright bars connected to and forming a part ofthe'support of the ad- 75 justable frame B.

rEhe upper end of the bars E kextend above the top face of theadjustable frame B and are provided with the inwardly- Iextending armsor brackets E', in which are mounted the supports D, forming bearings 8Ofor ashaft D2, carrying a plurality of transj the adjustable frame B.The lower end of the l bars or supports E are providedwith the braces orsupports g, connected to the rear of a hopper G, the forward side facesof the hopper Gr being vsuitably secured tothe lower end of thedepending timbersfC.

To more fullyunderstand the invention, ref- C represents supportscarried on the upper face of the adjustable frame B, forming bearingsfoi a transversely-disposed shaft O2, carrying a plurality of pulleys F,similar to the pulleyson the shaft D2. 95

The lower ends of the timbers@ and D ex-v the intermediate members J 3.

Ltend within the hopper G, which is simply a shell having side and rearwalls, and are provided with the transverse shafts C3D3, carrying aplurality of pulleys similar to and arranged in alinement with thepulleys F on the shafts C2 D2.

H is a rotary brush extending' transversely across the hopper andjournaled in the side walls thereof. rIhe shaft of this brush H isprovided with a sprocket-wheel t, connected by a sprocket-chain H to asimilar sprocketwheel 7L on the shaft C3. The brush H is adapted toengage the series of picks as they ascend from the hopper for removingany clinging soil and by the arrangement of the gearing is rotated inadirection the reverse of the movement of the ascending picks.

Referring more particularly to Figs. 3 to 6, I represents cross-barsprovided on their front face with a plurality of picks ordownwardlycurved chilled points a', the picks of one bar being sodisposed as to be a little out of alinement with the picks on the nextadjacent bar. The rear face of these plates are provided with aplurality of transversely disposed channeled link members J, pivotallyconnected to similar members on the next adjacent bar I by theintermediate link member J the channeled link members J and intermediatemembers J adapted to respectively engage during their continuous motionthe tongues F and slots F, alternately disposed circumferentially aroundthe pulleys F.

In Figs. 7 to 10 a substantially similar arrangement for supporting thescoo ps or buckets is shown, the cross-bar I being carried by thechanneled link members J2, connected by The scoops or buckets K areprovided with the angle-plates 7u, spaced suliiciently from the rearface of the scoops to snugly fit over the cross-bars I and held thereon,although it is obvious that any other suitable securing means-for thescoops may be provided. L represents atransverselydisposed pipe locatedadjacent the upper end of the series of conveyer-buckets K, the saidpipe being provided with a plurality of perforations Zfor directing aspray of water on the scoops or buckets as they rotate around theirupper supports, the object being to thoroughly clean the buckets as theybegin to descend. This pipe L is connected to a suitable water-supplyingmeans, such as the pump L, by means of the pipe connection Z.

In carrying out my invention I also provide suitable means for carryingoff the contents of the scoops or buckets to a suitable distant pointfor instance, back again into the trench for filling up the same afterthe pipe has been laidor to any other point. In the drawings I haveillustrated this by means of the chute M, pivotally supported at itsinner end, as at m, beneath the upper end of the series of buckets, andwithin this chute I may provide an endless belt or apron N, reeving oversuitable rollers m n, carried by the shafts m 12. It is obvious that thelength of this chute will be dependent upon thedistance to which thedirt is to conveyed; but for simplicity of illustration I have simplyshown it as extending but a short distance to the rear of the machine. Ialso provide suitable means for elevating or lowering the adjustableframe B, carrying with it the series of picks and buckets for regulatingthe depth of the trench. In the drawingsI have illustrated this means ascomprising a pair of derrick-arms I) on each side of the machine,pivotally mounted to be moved in a vertical plane, as at y), in bracketsP, pivotally secured, as at p', to the movable support A. In theirnormal position these derrick-arms are held in a position, as indicatedin Figs. 1 and 2, by means of the stay-ropes O, suitably secured attheir respective ends to the frame B and the outer 'ends of thederrick-arms. When the derrickarms are thus held in their normalposition, I have shown chute N as being supported by means of the hooks0, carried atione end of the cable O, passing through suitable eyeletsor pulleys p0 on the upper ends of the derrick-arms and reeving overpulleys a on the adjustable support Eand thence at their other ends,passing around a drum or windlass P2, carried by the derriek-arms P. Itis obvious, however, that this arrangement might readily be modifiedunder varying circumstances. When it is desired to raise or lower theadjustable frame B, carrying the series of picks and scoops, the derrickarms are swung around on their pivotal supports rearwardly and upwardly,when the hooks o are passed through the eyelets on the cross-bar of theadjustable frame B, and by operating the windlasses the frame may beraised or lowered after having been unlocked from its supporting-base A.

Any suitable locking means may be provided for holding the frame B inits adjusted position. In the drawings l have illustrated the simplemethod of providing the timbers C and the uprights E with perforations cc, respectively adapted to register with similar perforations throughthe side beams A of the movable support A, whereby the beams C anduprights E may be held in any adjusted position relatively to thebase-support A by means of the bolts or pins (t, passing through theapertures in the supports A C E.

Any suitable means may be provided for feeding the movable support Aforward during the operation of the machine. Also any suitableconnection may be used for operat ing the picks, buckets, and endlessconveycrbelt. For purposes of illustratioli I have shown a pair ofengines Q R and boiler Q, carried on the forward end of the platform A.The piston-rod and crank of the engine Q rotates the worm q and engagesa worm-wheel q, carried by a drum Q2, around which is wound acable'ff,`connected -at its free end-V ward of the machine.-

.c5 adjacent the drum o2.

with a stake or other stationary means for- The piston and crank of theengine R are in operative connection vvwith a drum R. geared to a seconddrum R2.

. On the inner end of the shaft C2 is mounted a drum 02, and adjacentthereto on said shaft is a gear-wheel c3, lmeshing with a gear of,carried bythe shaft of a suitably-mounted drum The k,shaft D2 extends atitsinner end somedistance beyond its support and carries a drum Z2 and asprocket` wheel X3, connected, by means of a sprocketchain m, to asprocket-wheel m2, carried on `the shaft m of the roller m. The drums c5and d2 are operatively connectedY by means of the cable l, and the drume2 is operatively con-- nected with the driving-drums R R2 by means ofthe cable 2, which is wound around =the drum-R2, thence around the drumRv', thence around the drum c2, and back to the drum R2, 2*?representing anysuitable connection bet tween theends of the cablewhereby the same maybe shortened orlengthened when the yframe B0 iselevated or lowered.

3, l, and 5 represent respective pipes connecting the boilerQ2 with thecylinders of the engines QR and the pumpL.

. In Fig. 12 I have shown in detail themeans `whereby the buckets are`guided along the timbers D. y From this View, inv connection with Fig.1, it will be seen that the rear sur-f face of the projecting ends ofthe crossbars'I engage and slide along the front and.

rear faces y'of the timbers D, and similarly the rear faces of the4corresponding projecting ends lfof the cross-bars I, carrying the picks,engage and `slide Aalong' the front and rear faces of the timbersC. I

In operation the shafts C2, D2, and m are operated frornthe drums RCR2by means of thecables21 and sprocket-chain m, thus rotatingv l thepulleys Fand operating the picks, scoops,

and-endless belt N, the rotation of the shaft .C3 operating, the brush Hto clean the picks lasthey ascend from the hopper and the scoops v 0rbuckets K, scooping up the dirt,`convey ing `it tothe aprony N. Duringthe operation ofthe machine the engine Q drives the drum g2, winding thecable g3 thereon,thus gradually feeding the machine `forward while thepicks andy shovels are in operation, thereby making the diggingloperation a continuous one. f

vIt is obvious that many modifications might be made inthe constructionand arrangement of the various parts of the machine, and I wish itunderstood that I do not limit myself to the details as shown; but 6o.

What I claim isv 1, In an excavating-machine, the combinaj tion with'asuitable movable support, of an endless flexible means rotatably carriedby said movable support, transverse plates carried by said fiexiblemeans, a plurality of picks affixed to said transverse plates, a'plurality of movable scoops located inthe rear of said picks and carriedby said movable support, andv means for conjointly operating saidflexible the picks on the next succeeding plates, aphi-V rality ofmovable scoops located adjacent said series of picks and carried lbysaid movable support, and means for' conjointly operating said flexiblemeans and scoops and `feeding said movable support forward during saidoperation.

and below said support, transverse plates carried by said fiexiblemeans, a plurality of picks afixed to said transverse plates, a secondliexi.

ble endless means rotatably support/ed above and below'said supportinthe-rear of said picks, a plurality of .scoops carriedby said secondfiexible means, land means `for conjointly operating said picks andscoops and.' ,feeding said movable support forward during saidoperation. v

f 4. In-an excavating-machine,.the combinationwith a suitable movablesupport, of a series of-endless fiexible means rotatably sup- Iportedabove and below said support, a plurality of transversely-clisposedplates carried by said series of fiexible means and provided with picksthereon, a second series of endless fiexible means rotatably supportedaboveand below said support in rear of saidpicks, a plus.

rality of scoops carried by s'aid second series lof flexible means, andmeans -for conjointly operating said flexible mean's and feeding saidmovable support forward during said conjoint operation.

v 5. In an excavating-machine, thecombina-v tion with'a suitable movablesupport, of adjustable depending supports carried by said movablesupport, endless flexible means rotatablyv supportedfadjacent .saiddepending supports and adjustable therewith, transverse plates carriedby` said flexible means adapted to engage and be guided by saiddependingy supports, a-plurality of picks afiixed to said: transverseplates, a plurality ofxmovable.

scoops located adjacent said picks and carried by said movable supports,and means for conjointly operating said flexible means and Scoops andfeeding said movable support forward during said operation.

6; In an excavating-machine, the combina-` tion with a movable support,of a plurality of picks or cutters carried by said lmovablesup- 8 5 3.yIn an excavating-machine, the combinaf `tionvwith a suitable movablesupport,.of endless flexible means rotatably supported-above loo port,depending supports adjacent said picks or cutters, endless flexiblemeans rotatably supported adjacent said depending support, transverseplates carried by said liexible means adapted to engage and be guided inoperation by said depending supports, scoops afxed to said transverseplates, and means for conjointly operating said picks and cutters andsaid flexible means and feeding said movable support forward during saidoperation.

7. In an excavating-machine, the combination with a suitable movablesupport, of adjustable supports carried thereby and extending above andbelow same adjacent each other, flexible means rotatably mountedadjacent each of said adjustable supports, a plurality of transverseplates carried by each of said flexible means and adapted to be engagedand be guided by said depending supports in their substantially verticalmovement, a plurality of picks carried by one set of said transversebars, a plurality of scoops carried by the other set of said transversebars, and means for conjointly operating said picks and scoops andfeeding said movable support forward during said conjoint operation.

8. In an excavating-machine, the combination with a suitable movablebase-support, of a frame above and adjustable vertically of saidbase-support, depending supports carried by said frame and extendingbelow said base-support, rotary means journaled above and in the lowerends of said depending supports, endless flexible means carried by theforward set of rotary means, a plurality of picks carried by saidflexible means, endless flexible means carried by the rear set of saidrotary means, scoops carried by said second flexible means, means forconjointly operating said flexible means carrying said picks and scoopsand moving said movable support forward during said conjoint operation,means for raising and lowering said adjustable frame, and means forlocking said frame in its adjusted position.

9. In an excavating-machine, the combination with a series ofsuitably-supported movable picks, of a series of suitably-supportedmovable scoops located in the rear of said picks, a hopper inclosing thelower ends of said series of picks and scoops, and means for conjointlyoperating said picks and scoops and feeding same and said hopper forwardduring said conjoint operation.

10. In an excavating-machine, the combination with a series ofsuitably-supported movable picks, of a series of suitably-supportedmovable scoops located in the rear of said picks, a hopper inclosing thelower end of said series of picks and scoops, a rotary brush journaledin said hopper and engaging said picks, means for rotating said brush,and means for conjointly operating said picks and scoops and feedingsame and said hopper forward during said conjoint operation.

11. In an excavating-machine, the combination with a series ofsuitably-supported movable picks, of a series of suitably-supportedmovable scoops located in the rear of said picks, atransversely-disposed perforated pipe located at the upper end of saidseries of scoops for directing sprays of water in the descending scoopsat the top of the series, and conveying means located atv the upper endof said series of scoops for receiving and carrying olf the contentsthereof.

l2. In an excavating-machine, the combination with a suitable movablesupport, of an adjustable support carried by said movable support,excavating and conveying means carried by said adjustable support andmeans for operating same, a derrick or gaffs carried by said movablesupport, and means operatively associated with said derrick or gaiis andsaid adjustable support, for raising or lowering the latter.

13. In an excavating-machine, the combination with a suitable movablesupport, of an adjustable upright support carried thereby, excavatingand conveying means carried by said adjustable support and means foroperating same, a discharge-chute mounted on said adjustable supportadjacent said conveying means, means for raising and lowering saidadjustable support, and means for holding same in its adjusted position.

14. In an excavating-machine, the combination with a suitable support,of a verticallyadjustable support carried thereby, excavating andconveying means carried by said adjustable support and means foroperating same, a discharge-chute pivotally mounted adjacent saidconveying means, a derrick or gaffs mounted on said movable support, andmeans operatively associated with said derrick or ga's for elevating orlowering said adjustable support and supporting the free end of saidpivoted discharge-chute.

In testimony whereof I aflix my signature in presence of two witnesses.

ALBERT MCCARTHY.

Witnesses:

HUBERT M. ANsLEY, GEO. MONTGOMERY.

IOO

